diff --git a/examples/platforms/utils/link_metrics.cpp b/examples/platforms/utils/link_metrics.cpp
index 88ed632d7..a09fab423 100644
--- a/examples/platforms/utils/link_metrics.cpp
+++ b/examples/platforms/utils/link_metrics.cpp
@@ -153,7 +153,7 @@ private:
 
 enum
 {
-    kMaxEnhAckProbingInitiator = 10,
+    kMaxEnhAckProbingInitiator = OPENTHREAD_CONFIG_MLE_LINK_METRICS_MAX_SERIES_SUPPORTED,
 };
 
 typedef Pool<LinkMetricsDataInfo, kMaxEnhAckProbingInitiator> LinkMetricsDataInfoPool;
diff --git a/src/core/config/mle.h b/src/core/config/mle.h
index 068ca7646..872e1a7fe 100644
--- a/src/core/config/mle.h
+++ b/src/core/config/mle.h
@@ -287,7 +287,7 @@
  *
  */
 #ifndef OPENTHREAD_CONFIG_MLE_LINK_METRICS_MAX_SERIES_SUPPORTED
-#define OPENTHREAD_CONFIG_MLE_LINK_METRICS_MAX_SERIES_SUPPORTED 10
+#define OPENTHREAD_CONFIG_MLE_LINK_METRICS_MAX_SERIES_SUPPORTED OPENTHREAD_CONFIG_MLE_MAX_CHILDREN
 #endif
 
 #endif // CONFIG_MLE_H_